Crotti, Ilaria;
Quiquet, Aurélien;
Landais, Amaelle;
Stenni, Barbara;
Wilson, David J;
Severi, Mirko;
Mulvaney, Robert;
... Frezzotti, Massimo; + view all
(2022)
Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials.
Nature Communications
, 13
, Article 5328. 10.1038/s41467-022-32847-3.
(In press).
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Abstract
The response of the East Antarctic Ice Sheet to past intervals of oceanic and atmospheric warming is still not well constrained but is critical for understanding both past and future sea-level change. Furthermore, the ice sheet in the Wilkes Subglacial Basin appears to have undergone thinning and ice discharge events during recent decades. Here we combine glaciological evidence on ice sheet elevation from the TALDICE ice core with offshore sedimentological records and ice sheet modelling experiments to reconstruct the ice dynamics in the Wilkes Subglacial Basin over the past 350,000 years. Our results indicate that the Wilkes Subglacial Basin experienced an extensive retreat 330,000 years ago and a more limited retreat 125,000 years ago. These changes coincide with warmer Southern Ocean temperatures and elevated global mean sea level during those interglacial periods, confirming the sensitivity of the Wilkes Subglacial Basin ice sheet to ocean warming and its potential role in sea-level change.
| Type: | Article |
|---|---|
| Title: | Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s41467-022-32847-3 |
| Publisher version: | https://doi.org/10.1038/s41467-022-32847-3 |
| Language: | English |
| Additional information: | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10155474 |
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